In a certain code, the word 'DOG' is coded as '47-15-7'. What would be the code for 'CAT'?

A. 3-1-20

What number should replace the question mark in the series: 1, 4, 9, 16, ?, 36

B. 25

If '?' stands for multiplication, '?' stands for addition, '?' stands for subtraction, and '?' stands for division, what is the value of 5 ? 3 ? 2 ? 4 ? 2?

C. 12

Identify the missing term in the series: 3, 7, 15, 31, ?, 127

A. 63

In a code, '?' means addition, '?' means subtraction, '×' means multiplication, and '÷' means division. What is the result of 9 ? 3 × 2 ? 4 ÷ 2?

B. 22